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Early Markers of Lung Injury
Research Report 29,
1989
This report describes a study by Dr. Evans and colleagues to develop an early marker of lung injury that changes in response to exposure to NO2, which is an important component of mobile source emissions. Rats were exposed to NO2 in concentrations ranging from 0.5 to 30 ppm for 6 hours per day for periods ranging from 2 days to 4 weeks. Urine and bronchoalveloar lavage samples were collected and analyzed for the presence of the lung injury markers hydroxylysin, angiotensin-converting enzyme, and desmosine. Additionally, pulmonary function studies and histologic examination of the lung were conducted.
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